Home / 136,520.15-188,374.97-76,077.55

Finding the Fourth Proportional to 136,520.15, 188,374.97 and 76,077.55

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Solution

The fourth proportional to 136,520.15, 188,374.97 and 76,077.55 is: 104,974.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,520.15 : 188,374.97 = 76,077.55 : x
  2. Step 2: Convert to fraction form
    136,520.15/188,374.97 = 76,077.55/x
  3. Step 3: Cross multiply
    136,520.15x = 188,374.97 × 76,077.55
  4. Step 4: Simplify right side
    136,520.15x = 14,331,104,876.66
  5. Step 5: Solve for x
    x = 14,331,104,876.66/136,520.15
  6. Step 6: Final answer
    x = 104,974.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.